Clark's Nutcracker

Whitebark pine is a species on the brink of endangerment. If whitebark go, several species of wildlife, including grizzly bears, will lose a significant food source. But researchers are slowly piecing together how to harness the tree’s natural defenses to preserve it.

Intelligent Tweeting: Understanding The Cognitive Capacity Of The Clark's Nutcracker

As a bird biologist who studies bird songs, I immediately recognize most sounds I come across in nature: the winnowing of a Wilson’s Snipe, the smack of a Dark-eyed Junco, the zee-chubbity-chub of a Rufous Hummingbird, just to name a few. For me it is a matrix of sound, as diverse and varied as the surrounding landscape. When I hear a strange sound in nature, I can’t give up until I determine its source.